forked from enlightenment/efl
215 lines
11 KiB
C++
215 lines
11 KiB
C++
#ifndef EOLIAN_CXX_CLASS_DEFINITION_HH
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#define EOLIAN_CXX_CLASS_DEFINITION_HH
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#include "grammar/generator.hpp"
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#include "grammar/klass_def.hpp"
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#include "grammar/indentation.hpp"
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#include "grammar/list.hpp"
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#include "grammar/alternative.hpp"
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#include "grammar/type.hpp"
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#include "grammar/parameter.hpp"
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#include "grammar/function_declaration.hpp"
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#include "grammar/case.hpp"
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#include "grammar/address_of.hpp"
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#include "grammar/attribute_reorder.hpp"
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#include "grammar/attribute_conditional.hpp"
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#include "grammar/attribute_replace.hpp"
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namespace efl { namespace eolian { namespace grammar {
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struct class_definition_generator
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{
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template <typename OutputIterator, typename Context>
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bool generate(OutputIterator sink, attributes::klass_def const& cls, Context const& context) const
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{
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std::vector<std::string> cpp_namespaces = attributes::cpp_namespaces(cls.namespaces);
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auto open_namespace = *("namespace " << string << " { ") << "\n";
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if(!as_generator(open_namespace).generate(sink, cpp_namespaces, add_lower_case_context(context))) return false;
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if(!as_generator
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(
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"struct " << string << " : private ::efl::eo::concrete"
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)
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.generate(sink, cls.cxx_name, context))
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return false;
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for(auto&& i : cls.inherits)
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{
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if(!as_generator("\n" << scope_tab << ", EO_CXX_INHERIT(" << *(" ::" << lower_case[string]) << "::" << string << ")")
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.generate(sink, std::make_tuple(attributes::cpp_namespaces(i.namespaces), i.eolian_name), context))
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return false;
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}
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if(!as_generator("\n{\n").generate(sink, attributes::unused, context)) return false;
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// constructors
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if(!as_generator
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(
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scope_tab << "explicit " << string << "( ::Eo* eo)\n"
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<< scope_tab << scope_tab << ": ::efl::eo::concrete(eo) {}\n"
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<< scope_tab << string << "(std::nullptr_t)\n"
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<< scope_tab << scope_tab << ": ::efl::eo::concrete(nullptr) {}\n"
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<< scope_tab << "explicit " << string << "() = default;\n"
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<< scope_tab << string << "(" << string << " const& other) = default;\n"
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<< scope_tab << string << "(" << string << "&& other) = default;\n"
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<< scope_tab << string << "& operator=(" << string << " const& other) = default;\n"
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<< scope_tab << string << "& operator=(" << string << "&& other) = default;\n"
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<< scope_tab << "template <typename Derived>\n"
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<< scope_tab << string << "(Derived&& derived\n"
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<< scope_tab << scope_tab << ", typename std::enable_if<\n"
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<< scope_tab << scope_tab << scope_tab << "::efl::eo::is_eolian_object<Derived>::value\n"
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<< scope_tab << scope_tab << scope_tab << " && std::is_base_of< " << string << ", Derived>::value"
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<< scope_tab << scope_tab << scope_tab << ">::type* = 0) : ::efl::eo::concrete(derived._eo_ptr())\n"
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<< scope_tab << "{}\n"
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<< scope_tab << string << "( ::efl::eo::instantiate_t)\n"
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<< scope_tab << "{\n"
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<< scope_tab << scope_tab << "::efl::eolian::do_eo_add( ::efl::eo::concrete::_eo_raw, ::efl::eo::concrete{nullptr}, _eo_class());\n"
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<< scope_tab << "}\n"
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<< scope_tab << "template <typename T>\n"
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<< scope_tab << "explicit " << string << "( ::efl::eo::instantiate_t, T&& parent, typename std::enable_if< ::efl::eo::is_eolian_object<T>::value>::type* = 0)\n"
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<< scope_tab << "{\n"
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<< scope_tab << scope_tab << "::efl::eolian::do_eo_add( ::efl::eo::concrete::_eo_raw, parent, _eo_class());\n"
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<< scope_tab << "}\n"
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<< scope_tab << "template <typename F> " << string << "( ::efl::eo::instantiate_t, F&& f, typename ::std::enable_if< ::efl::eolian::is_constructor_lambda<F, " << string << " >::value>::type* = 0)\n"
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<< scope_tab << "{\n"
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<< scope_tab << scope_tab << "::efl::eolian::do_eo_add( ::efl::eo::concrete::_eo_raw, ::efl::eo::concrete{nullptr}, _eo_class(), *this, std::forward<F>(f));\n"
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<< scope_tab << "}\n"
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<< scope_tab << "template <typename T, typename F> " << string << "( ::efl::eo::instantiate_t, T&& parent, F&& f, typename ::std::enable_if< ::efl::eolian::is_constructor_lambda<F, " << string << " >::value && ::efl::eo::is_eolian_object<T>::value>::type* = 0)\n"
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<< scope_tab << "{\n"
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<< scope_tab << scope_tab << "::efl::eolian::do_eo_add( ::efl::eo::concrete::_eo_raw, parent, _eo_class(), *this, std::forward<F>(f));\n"
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<< scope_tab << "}\n"
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// << scope_tab << "explicit " << string << "( ::efl::eo::concrete const& parent)\n"
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// << scope_tab << scope_tab << ": ::efl::eo::concrete( ::efl::eo::do_eo_add(parent)) {}\n"
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// << scope_tab << "template <typename F>\n"
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// << scope_tab << "explicit " << string << "( ::efl::eo::concrete const& parent, F f)\n"
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// << scope_tab << scope_tab << ": ::efl::eo::concrete( ::efl::eo::do_eo_add(parent, f)) {}\n"
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// << scope_tab << "template <typename F>\n"
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// << scope_tab << "explicit " << string << "(F f)\n"
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// << scope_tab << scope_tab << ": ::efl::eo::concrete( ::efl::eo::do_eo_add( ::efl::eo::concrete{nullptr}, f)) {}\n"
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).generate(sink, attributes::make_infinite_tuple(cls.cxx_name), context)) return false;
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if(!as_generator(*(scope_tab << function_declaration))
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.generate(sink, cls.functions, context)) return false;
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// static Efl_Class const* _eo_class();
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std::string suffix;
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switch(cls.type)
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{
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case attributes::class_type::regular:
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case attributes::class_type::abstract_:
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suffix = "CLASS";
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break;
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case attributes::class_type::mixin:
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suffix = "MIXIN";
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break;
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case attributes::class_type::interface_:
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suffix = "INTERFACE";
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break;
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}
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if(!as_generator
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(
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scope_tab << "static Efl_Class const* _eo_class()\n"
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<< scope_tab << "{\n"
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<< scope_tab << scope_tab << "return "
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).generate(sink, attributes::unused, context)) return false;
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if(!as_generator
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(*(string << "_") << string << "_" << string)
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.generate(sink, std::make_tuple(cls.namespaces, cls.eolian_name, suffix), add_upper_case_context(context)))
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return false;
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if(!as_generator(";\n" << scope_tab << "}\n").generate(sink, attributes::unused, context)) return false;
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if(!as_generator
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(
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scope_tab << "Eo* _eo_ptr() const { return *(Eo**)this; }\n"
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).generate(sink, attributes::unused, context)) return false;
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for (auto&& e : cls.events)
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{
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if (e.beta)
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{
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suffix = "BETA";
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if(!as_generator
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("#ifdef " << *(string << "_") << string << "_" << string << "\n")
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.generate(sink, std::make_tuple(cls.namespaces, cls.eolian_name, suffix), add_upper_case_context(context)))
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return false;
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}
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if (e.protect)
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{
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suffix = "PROTECTED";
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if(!as_generator
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("#ifdef " << *(string << "_") << string << "_" << string << "\n")
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.generate(sink, std::make_tuple(cls.namespaces, cls.eolian_name, suffix), add_upper_case_context(context)))
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return false;
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}
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if(!as_generator
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(
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*attribute_reorder<1, 2, 0, 1>
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((scope_tab << "static struct " << string_replace(',', '_') << "_event\n"
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<< scope_tab << "{\n"
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<< scope_tab << scope_tab << "static Efl_Event_Description const* description()\n"
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<< scope_tab << scope_tab << "{ return " << string << "; }\n"
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<< scope_tab << scope_tab << "typedef "
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<< (attribute_conditional([] (eina::optional<attributes::type_def> const& t) { return !!t; })
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[attribute_replace([] (eina::optional<attributes::type_def> const& t) { return *t; }) [type]]
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| "void")
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<< " parameter_type;\n"
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<< scope_tab << "} const " << string_replace(',', '_') << "_event;\n"
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))).generate(sink, std::vector<attributes::event_def>{e}, context))
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return false;
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if (e.beta && !as_generator("#endif\n").generate(sink, attributes::unused, context))
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return false;
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if (e.protect && !as_generator("#endif\n").generate(sink, attributes::unused, context))
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return false;
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}
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// /// @cond LOCAL
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if(!as_generator(scope_tab << "/// @cond LOCAL\n").generate(sink, attributes::unused, context)) return false;
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if(!as_generator(address_of).generate(sink, cls, context)) return false;
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// /// @endcond
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if(!as_generator(scope_tab << "/// @endcond\n").generate(sink, attributes::unused, context)) return false;
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if(!as_generator( scope_tab << "::efl::eo::concrete const& _get_concrete() const { return *this; }\n"
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<< scope_tab << "::efl::eo::concrete& _get_concrete() { return *this; }\n"
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).generate(sink, attributes::unused, context)) return false;
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if(!as_generator( scope_tab << "using ::efl::eo::concrete::_eo_ptr;\n"
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<< scope_tab << "using ::efl::eo::concrete::_release;\n"
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<< scope_tab << "using ::efl::eo::concrete::_reset;\n"
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<< scope_tab << "using ::efl::eo::concrete::operator bool;\n"
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).generate(sink, attributes::unused, context)) return false;
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if(!as_generator( scope_tab << "friend bool operator==(" << string << " const& lhs, " << string << " const& rhs)\n"
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<< scope_tab << "{ return lhs._get_concrete() == rhs._get_concrete(); }\n"
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<< scope_tab << "friend bool operator!=(" << string << " const& lhs, " << string << " const& rhs)\n"
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<< scope_tab << "{ return !(lhs == rhs); }\n"
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<< "};\n").generate(sink, attributes::make_infinite_tuple(cls.cxx_name), context)) return false;
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// static asserts
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if(!as_generator("static_assert(sizeof(" << string << ") == sizeof(Eo*), \"\");\n")
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.generate(sink, cls.cxx_name, context)) return false;
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if(!as_generator("static_assert(std::is_standard_layout<" << string << ">::value, \"\");\n")
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.generate(sink, cls.cxx_name, context)) return false;
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auto close_namespace = *(lit("} ")) << "\n";
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if(!as_generator(close_namespace).generate(sink, cpp_namespaces, context)) return false;
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return true;
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}
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};
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template <>
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struct is_eager_generator<class_definition_generator> : std::true_type {};
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namespace type_traits {
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template <>
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struct attributes_needed<class_definition_generator> : std::integral_constant<int, 1> {};
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}
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class_definition_generator const class_definition = {};
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} } }
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#endif
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